copper pyrites
Americannoun
noun
Etymology
Origin of copper pyrites
First recorded in 1770–80
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Some of you will have heard that there are smelting works to-day where the sulphurous acid, which copper pyrites supplies when it is roasted, is used for the manufacture of sulphuric acid.
From Aladdin of London or, Lodestar by Pemberton, Max, Sir
Thallium is a rare metal, found in small quantities in some varieties of iron and copper pyrites, and in some lithia micas.
From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius
About Mambulao cupro-ferruginous quartz and copper pyrites are found, but are not worked.
From The Inhabitants of the Philippines by Sawyer, Frederic H.
The form of the copper pyrites is shown in Fig.
From Scientific American Supplement, No. 344, August 5, 1882 by Various
Copper.—Sometimes, as in the neighbourhood of copper mines or of some copper pyrites deposits, a water may be contaminated with small quantities of copper.
From The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association by Shonk, Albert
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
